{"product_id":"noyafa-nf-981-otdr-fiber-optic-fault-detector-optical-power-meter-for-opm-vfl-ols-event-map-ethernet-fiber-10m-60km-cable-tester","title":"NOYAFA NF-981 OTDR Fiber Optic Fault Detector Optical Power Meter For OPM VFL OLS Event Map Ethernet Fiber 10m-60km Cable Tester","description":"\u003csection data-tufzen-geo-summary=\"v1\" class=\"tufzen-product-summary\"\u003e\u003ch2\u003eProduct Summary\u003c\/h2\u003e\n\u003cp\u003eNOYAFA NF-981 OTDR Fiber Optic Fault Detector Optical Power Meter For OPM VFL OLS Event Map is a digital measurement tool selected for measuring voltage, current, resistance and common electrical parameters. It is suitable for electricians, repair users and electronics hobbyists who need practical electronics hardware for reliable project work.\u003c\/p\u003e\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003emeasuring voltage, current, resistance and common electrical parameters\u003c\/li\u003e\n\u003cli\u003eelectronics repair, home electrical checks and bench testing\u003c\/li\u003e\n\u003cli\u003eElectronics testing, repair, prototyping and maker workflows\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWho is this product for?\u003c\/strong\u003e It is intended for electricians, repair users and electronics hobbyists.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I check before buying?\u003c\/strong\u003e Review the product options, specifications, included accessories and compatibility details on this page.\u003c\/p\u003e\u003c\/section\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"color:rgb(244, 78, 59);font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003e\u003cbr\u003e Product Description:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eBrand: NOYAFA\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cstrong\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eProduct Name: OTDR Fiber Optic Reflectometer\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eType: NF-981\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eDimension(LxWxD): 173x82x37mm\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eDynamic Range: 24dB\/22dB\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eTest Range:10m-60km\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eWavelength: 1310\/1550nm\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eOTDR\/OLS Connector: FC\/PC(Interchangeable SC\/ST)\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003ewaveform Width: 5ns-10us\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eAttenuation Dead Zone: 15m\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eEvent Dead Zone: 10m\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eSampling Point: 16K-128K\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eLoss accuracy: ±0.2dB\/dB\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eOPM: +26--50dBm, 850\/1300\/1310\/1490\/1550\/1577\/1625nm, universal connector\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eVFL: 10mW, universal connector\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eLCD: 3.5-inch high-definition color LCD screen\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003eLED Light: Support\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003ePower supply: 3.7V, 4000mAh lithium battery\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp align=\"start\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e\u003cstrong\u003eProduct Features:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e\u003cstrong\u003e1. Event Map:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e This function is one-click automatic test, which displays the length of the optical fiber link under test, event point type, breakpoint location and other information in a graphical form, and the results are clear and easy to understand.\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e\u003cstrong\u003e2. Optical Power Meter:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e This fiber fault detector used for optical signal power testing, insertion loss testing, etc. of various types of equipment and optoelectronic components. (F1: Switch wavelength, F2: Set reference power, F3: Set reference power to zero, F4: Enter oscilloscope mode)\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e\u003cstrong\u003e3. VFL - Visual Fault Location:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e Inject visible red light (650nm) into the optical fiber, and observe the light leakage position on the fiber under test to easily and accurately determine the location of the optical fiber fault point.\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e\u003cstrong\u003e4. LS-stable Light Source:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e The stable light source wavelength is consistent with the OTDR wavelength and is used for telecommunications, CATV, and LAN optical cable parameter testing; light source device insertion loss, isolation, return loss testing; detector wavelength responsivity testing, etc.\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e\u003cstrong\u003e5. Loss Test:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e 1310nm\/1550nm light source and power meter are displayed simultaneously for convenient testing. Optical passive device insertion loss, isolation, return loss testing.\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e\u003cstrong\u003e6. RJ45 line sequence test:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e Please connect the remote module for RJ45 line sequence measurement during the test.\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e7. OTDR waveform zoom, can enter zoom mode.\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:Arial\"\u003e8. OTDR files can be saved.\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e1. When using this instrument, do not look directly at the optical output port or the end of the optical fiber to avoid damaging your eyes or even causing blindness!\u003c\/span\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003cspan style=\"font-size:16px;font-family:arial, helvetica, sans-serif\"\u003e2. NF-981 cannot be tested with light, otherwise it will cause damage to the internal components of the instrument!\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp align=\"start\" class=\"MsoNormal\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:inherit;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box'\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-noyafa-nf-981-otdr-fiber-optic-fault-detector-optical-power-meter-for-opm-vfl-ol-1.webp?v=1779191186\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-noyafa-nf-981-otdr-fiber-optic-fault-detector-optical-power-meter-for-opm-vfl-ol-2.webp?v=1779191186\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-noyafa-nf-981-otdr-fiber-optic-fault-detector-optical-power-meter-for-opm-vfl-ol-3.webp?v=1779191186\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" 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